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公开(公告)号：US20210184741A1
公开(公告)日：2021-06-17
申请号：US17187607
申请日：2021-02-26
Applicant: Space Exploration Technologies Corp.
Inventor： Alireza Mehrnia , Masoud Kahrizi , Ka Shun Carson Pun , Omid Nasiby , Alex Ahmad Mirzaei
Abstract: In an embodiment, an apparatus includes a first plurality of digital beamformers associated with a first channel, the first plurality of digital beamformers configured to encode each data beam of a first plurality of data beams of the first channel to generate an encoded first plurality of data beams; a second plurality of digital beamformers associated with a second channel different from the first channel, the second plurality of digital beamformers configured to encode each data beam of a second plurality of data beams of the second channel to generate an encoded second plurality of data beams; and a channel combiner, electrically coupled to the first and second plurality of digital beamformers, and configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.
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公开(公告)号：US10944442B1
公开(公告)日：2021-03-09
申请号：US16865402
申请日：2020-05-03
Applicant: Space Exploration Technologies Corp.
Inventor： Alireza Mehrnia , Masoud Kahrizi , Alex Ahmad Mirzaei , Bagher Afshar , Ali Sajjadi , Bernd Pregardier , Ka Shun Carson Pun , Omid Nasiby , Igor Elgorriaga
Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; a plurality of phase shifters electrically coupled to the channel extractor and configured to decode each data signal of the plurality of data signals with a respective phase; and a plurality of time delay filters electrically coupled to the plurality of phase shifters and configured to decode each data signal of the plurality of data signals with a respective time delay, wherein the plurality of time delay filters outputs each subset of the plurality of data signals in a respective channel of the plurality of channels.
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公开(公告)号：US10938465B1
公开(公告)日：2021-03-02
申请号：US16865400
申请日：2020-05-03
Applicant: Space Exploration Technologies Corp.
Inventor： Alireza Mehrnia , Masoud Kahrizi , Ka Shun Carson Pun , Omid Nasiby , Alex Ahmad Mirzaei
Abstract: In an embodiment, an apparatus includes a first plurality of digital beamformers associated with a first channel; a second plurality of digital beamformers associated with a second channel different from the first channel; a channel combiner, electrically coupled to the first and second plurality of digital beamformers, and configured to generate a combined channel comprising an aggregation of the encoded first plurality of data beams and the encoded second plurality of data beams, wherein the combined channel has a bandwidth that is a function of a bandwidth of one or both of the first or second channel; and a radio frequency (RF) transmission section, electrically coupled to the channel combiner, and configured to generate an output signal to be provided to a transmitting antenna based on the combined channel, wherein the RF transmission section includes a digital-to-analog converter (DAC) and a mixer.
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公开(公告)号：US20210013975A1
公开(公告)日：2021-01-14
申请号：US15931443
申请日：2020-05-13
Applicant: Space Exploration Technologies Corp.
Inventor： David Francois Jacquet , Masoud Kahrizi , Robert Baummer, JR. , Jean-Noel Rozec , Fabrice Jean André Belvèze , Paul Lee Pearson , Francois Lucien Emile Icher , Marc Gens , Pascal Triaire
Abstract: In an embodiment, an apparatus included in a communications system includes a transmit section including a first baseband section and a first radio frequency (RF) section, wherein the transmit section is configured to receive a calibration signal, the first RF section is configured to generate a RF calibration signal based on the calibration signal, and wherein the calibration signal comprises an orthogonal code based signal; and a receive section configured to receive the RF calibration signal over-the-air, wherein the receive section includes a second RF section and a calibration section, wherein the second RF section is configured to generate a received calibration signal based on the RF calibration signal, and wherein the calibration section is configured to determine one or more of gain, baseband delay, or RF delay compensation values, based on the inputs, to calibrate the transmit section.
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公开(公告)号：US12183988B2
公开(公告)日：2024-12-31
申请号：US18505622
申请日：2023-11-09
Applicant: Space Exploration Technologies Corp.
Inventor： Masoud Kahrizi , Alex Ahmad Mirzaei , Ali Sajjadi , Bagher Afshar , Babak Vakili-Amini , Alireza Mehrnia , Behzad Nourani , Bernd Pregardier
Abstract: In an embodiment, an apparatus includes a first digital beamformer (DBF) associated with a first subset of antennas of a phased array antenna, the first DBF including a transmit section associated with transmission of a first signal at a first frequency in a transmit mode and a receive section associated with receiving of a second signal at a second frequency in a receive mode, the second frequency being different from the first frequency. The apparatus includes a second DBF associated with a second subset of antennas of the phased array antenna. The first and second DBFs are configured to receive a local oscillator signal having the first frequency from a common local oscillator in the transmit mode and receive the local oscillator signal having the second frequency from the common local oscillator in the receive mode.
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Patent Agency Ranking
公开(公告)号：US20240388319A1
公开(公告)日：2024-11-21
申请号：US18665028
申请日：2024-05-15
Applicant: Space Exploration Technologies Corp.
Inventor： Masoud Kahrizi , Ali Sajjadi , Edward Yeuan , Alex Ahmad Mirzaei , Nooshin Vakilian , Eric Pepin
Abstract: Systems and techniques for distributing reference signals are disclosed. For example, a method includes generating, by a first phase-locked loop (PLL) included in a first beamformer (BF) chip, a first local oscillator (LO) signal; generating, by a second PLL included in a second BF chip, a second LO signal; and in a first BF configuration, transmitting radio frequency (RF) signals by a plurality of antenna elements based on the first LO signal. A first subset of the plurality of the antenna elements is associated with the first BF chip and a second subset of the plurality of antenna elements is associated with the second BF chip. The method includes, in a second BF configuration, receiving RF signals by the first subset of the plurality of antenna elements and the second subset of the plurality of antenna elements based on the second LO signal.
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公开(公告)号：US20240039568A1
公开(公告)日：2024-02-01
申请号：US18483988
申请日：2023-10-10
Applicant: Space Exploration Technologies Corp.
Inventor： Alireza Mehrnia , Masoud Kahrizi , Alex Ahmad Mirzaei , Bagher Afshar , Ali Sajjadi , Bernd Pregardier , Ka Shun Carson Pun , Omid Nasiby , Igor Elgorriaga
CPC classification number: H04B1/16 , H04L7/0033 , H04B7/08
Abstract: In an embodiment, a receiver included in a communications system is configured to receive a radio frequency (RF) signal from a phased array antenna, the RF signal comprising at least a portion of a plurality of data beams included in a single channel, generate a plurality of channel signals based on the RF signal. Generating the plurality of channel signals includes separating the RF signal into a plurality of channels in which each channel of the plurality of channels includes at least a portion of a respective subset of the plurality of data beams. The receiver is further configured to decode each data beam of the plurality of channel signals with a respective phase and a respective time delay. The receiver is further configured to output the plurality of data beams of the plurality of channels.
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公开(公告)号：US11483021B2
公开(公告)日：2022-10-25
申请号：US17193633
申请日：2021-03-05
Applicant: Space Exploration Technologies Corp.
Inventor： Alireza Mehrnia , Masoud Kahrizi , Alex Ahmad Mirzaei , Bagher Afshar , Ali Sajjadi , Bernd Pregardier , Ka Shun Carson Pun , Omid Nasiby , Igor Elgorriaga
Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.
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公开(公告)号：US20220231691A1
公开(公告)日：2022-07-21
申请号：US17714081
申请日：2022-04-05
Applicant: Space Exploration Technologies Corp.
Inventor： David Francois Jacquet , Mostafa Ghazali , Masoud Kahrizi , Andras Tantos
Abstract: In an embodiment, an apparatus includes an integrated circuit (IC) chip configured to receive a timing signal and a reference clock signal. The IC chips is configured to a reference time signal based on the timing signal and the reference clock signal. The IC chip includes a phase lock loop (PLL). The PLL is synchronized based on the reference time signal.
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公开(公告)号：US11133806B1
公开(公告)日：2021-09-28
申请号：US16858675
申请日：2020-04-26
Applicant: Space Exploration Technologies Corp.
Inventor： David Francois Jacquet , Mostafa Ghazali , Masoud Kahrizi , Andras Tantos
Abstract: In an embodiment, an apparatus includes a first integrated circuit (IC) chip configured to receive a timing signal and a reference clock signal; a second IC chip configured to receive the timing signal from the first IC chip and the reference clock signal; and a third IC chip configured to receive the timing signal from the second IC chip and the reference clock signal. The second IC chip is electrically coupled between the first and third IC chips. The first, second, and third IC chips include respectively first, second, and third phase lock loop (PLL). The first, second, and third IC chips are configured to generate respective first, second, and third reference time signals based on the timing signal and the reference clock signal. The first, second, and third PLLs are synchronized to each other based on the respective first, second, and third reference time signals.
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